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What is the structure of boron carbide?

What is the structure of boron carbide? The most stable boron carbide structure is B13C2, B12C3, B4C and other phases close to B12C3 with rhombohedral structure. In addition, there are some metastable boron carbide structures. The rhombohedral structure of boron carbide includes 12 icosahedral atomic clusters, which are connected to each other by covalent bonds,

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Preparation method of boron carbide powder and ceramics:

Preparation method of boron carbide powder and ceramics: (1) Preparation methods of boron carbide powder: carbothermal reduction method, self-propagating high-temperature synthesis method, direct element synthesis method, chemical vapor deposition method, mechanical alloying method, solvothermal method, and precursor cracking method. (2) Preparation methods of boron carbide ceramics: hot pressing sintering, atmospheric pressure sintering, activation sintering, hot

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